Audience response system , also called interactive voting system.

It can realize the function of voting and scoring, and consists of 3 parts,

wireless receiver , clicker (respons keypad), and software.

wireless receiver:RF technology of 2.4ghz, Need No driver,USB

connect it to laptop,  2way radio frequency of domestic first, working

distance of  indoors can reach to 50m radius. 1 receiver can support 999

pcs of clickers, but we advise not more than 300 pcs for not influencing

clicker: Each person or student holds a wireless clicker, and send

the answer they choose by pressing the button. Clicker is with large LCD,

16buttons, 10 channels,2 pcs of AAA battery,durable, automatically saving

mode. it can realize the function of signing in,voting and scoring. Such as

voting for agree,disagree,or abstain, choosing the answer from

The first one is standard software free of charge.

It is mainly used in classroom.works in POWERPOINT, 

need not to install it step by step, just keep it in laptop, very easy to use.

The second one is we write according to the request of client. It is mainly

used for meetings. such as conference voting ,TV program,song

contest,medical training service.